Feeling high

Hi guys I'm currently feeling very high like I have no worries at all. What is this feeling. I have on going health problems but I can't feel worried. I can laugh to jokes as if nothing is wrong but I know this is not my feelings. I'm a very strongly emotional person now I feel like I'm not myself. I know about derealization but is this how it feels? How can I make it stop? I have fatigue and weakness and joint pain too. I want to feel normal again.

Back in July I had a fever, after that everything got worse. Fatigue, joint pains, swollen saliva glands, my gastritis got worse. And then i got depressed. And anxious. Very anxious. And then slowly gradually i started getting more and more numb. I wss aware of it happening but not until recently when i realised the numbness feels like im disconnected from my own feelings. I dont feel like myself. Now i feel like i dont care anymore. I'm aware of all this and I'm seeing a psych soon. Im not on any meds for it.